DELPHINIUM PLANT NAMED 'ET DLP 17-11'

Abstract

A new and distinct cultivar of Delphinium plant named ‘ET DLP 17-1 1’, characterized by its relatively compact, upright and sturdy plant habit; relatively small dark green-colored leaves; freely flowering habit; strong flowering stems with dense inflorescences with numerous dark purple-colored flowers with light violet-colored margins; and good garden performance.

Claims

1. A new and distinct Delphinium plant named ‘ET DLP 17-11’ as illustrated and described.

Description

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

[0029] The accompanying colored photographs illustrate the overall appearance of the Delphinium plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the actual colors of the new Delphinium plant.

[0030] The photograph on the first sheet (FIG. 1 of 2) comprises a side perspective view of a typical flowering plant of ‘ET DLP 17-11’ grown in an outdoor nursery.

[0031] The photograph on the second sheet (FIG. 2 of 2) is a close-up view of typical flowers of ‘ET DLP 17-11’.

DETAILED BOTANICAL DESCRIPTION

[0032] Plants used for the following description were grown in ground beds and 26-cm containers during the spring and summer in an outdoor nursery in Boijl, The Netherlands and under cultural practices typical of commercial Delphinium production. During the production of the plants, day temperatures ranged from 18° C. to 23° C. and night temperatures ranged from 10° C. to 16° C. Plants were one year old when the photographs and the description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2001 Edition, except where general terms of ordinary dictionary significance are used. [0033] Botanical classification: Delphinium elatum X (Delphinium x belladonna) ‘ET DLP 17-11’. [0034] Parentage: [0035] Female, or seed, parent.—Proprietary selection of Delphinium elatum identified as code number 1138, not patented. [0036] Male, or pollen, parent.—Proprietary selection of Delphinium x belladonna identified as code number 464, not patented. [0037] Propagation: [0038] Type of propagation.—In vitro meristem culture. [0039] Time to initiate roots, summer.—About 12 to 16 days at temperatures ranging from 15° C. to 21° C. [0040] Time to initiate roots, winter.—About 15 to 25 days at temperatures ranging from 12° C. to 15° C. [0041] Time to produce a rooted young plant, summer.—About four weeks at temperatures ranging from 18° C. to 21° C. [0042] Time to produce a rooted young plant, winter.—About five to six weeks at temperatures ranging from 12° C. to 15° C. [0043] Root description.—Medium in thickness, fibrous; typically close to 11A in color, actual color of the roots is dependent on substrate composition, water quality, fertilizer type and formulation, substrate temperature and physiological age of roots. [0044] Rooting habit.—Freely branching; dense. [0045] Plant description: [0046] Plant type.—Herbaceous perennial. [0047] Plant and growth habit.—Relatively compact, upright and sturdy plant habit; moderately vigorous to vigorous growth habit and moderate growth rate; freely branching habit. [0048] Plant height.—About 55 cm. [0049] Plant width.—About 35 cm to 45 cm. [0050] Leaf description: [0051] Arrangement.—Alternate or whorled towards the plant base. [0052] Length.—About 6 cm to 10 cm. [0053] Width.—About 10 cm to 15 cm. [0054] Shape.—Palmately lobed with three to five lobes per leaf. [0055] Apex.—Acute. [0056] Base.—Cordate. [0057] Margin.—Entire and incised. [0058] Texture, upper surface.—Slightly pubescent; smooth. [0059] Texture, lower surface.—Slightly pubescent; rough. [0060] Venation pattern.—Palmate. [0061] Color.—Developing and fully expanded leaves, upper surface: Close to 137A; venation, close to 144C. Developing and fully expanded leaves, lower surface: Close to 138B; venation, close to 144C. [0062] Petioles.—Length: About 4 cm to 8 cm. Diameter: About 2 mm to 5 mm. Strength: Strong. Texture, upper and lower surfaces: Pubescent; smooth. Color, upper and lower surfaces: Close to 144B. [0063] Flower description: [0064] Flower arrangement and shape.—Double star-shaped flowers arranged on dense terminal racemes; flowers face mostly outwardly. [0065] Flowering habit.—Freely flowering habit with about 20 to 30 flowers developing per inflorescence and more than 500 flowers per plant. [0066] Fragrance.—None detected. [0067] Natural flowering season.—Long flowering period; plants flower continuously during the spring and summer in The Netherlands. [0068] Flower longevity.—Flowers last about two weeks on the plant; flowers not persistent. [0069] Flower buds.—Length: About 1 cm to 3 cm. Diameter: About 1 cm to 2 cm. Shape: Ovate. Texture: Smooth, glabrous. Color: Close to 145D. [0070] Inflorescence height.—About 25 cm to 30 cm. [0071] Inflorescence diameter.—About 8 cm to 10 cm. [0072] Flower diameter.—About 4 cm to 5 cm. [0073] Flower height.—About 2.5 cm. [0074] Petals.—Quantity and arrangement: About three to five crowded in the center of the flower. Length: About 1.5 mm. Width: About 1 mm. Shape: Obovate; concave. Apex: Obtuse. Base: Attenuate. Margin: Entire; undulate. Texture, upper and lower surfaces: Smooth, glabrous; satiny. Color: When opening, upper and lower surfaces: Close to 91D; towards the margins, close to N87B to N87C. Fully opened, upper and lower surfaces: Close to 91D; towards the margins, close to N87A; with development, color becoming closer to N87A. [0075] Sepals.—Quantity and arrangement: About 15 to 20 arranged in several whorls. Length: About 2 cm. Width: About 1.5 cm. Shape: Obovate; concave. Apex: Obtuse. Base: Attenuate. Margin: Entire; undulate. Texture, upper and lower surfaces: Smooth, glabrous; satiny. Color: When opening, upper and lower surfaces: Close to 91D; towards the margins, close to N87B to N87C. Fully opened, upper and lower surfaces: Close to 91D, towards the margins, close to N87A; with development, color becoming closer to N87A. [0076] Peduncles.—Length: About 50 cm. Diameter: About 1 cm. Aspect: Erect. Strength: Strong. Texture: Smooth, glabrous. Color: Close to 144B to 144C. [0077] Pedicels.—Length: About 2 cm to 3 cm. Diameter: About 2 mm to 5 mm. Aspect: About 45° from peduncle axis. Strength: Moderately strong. Texture: Smooth, glabrous. Color: Close to 144B to 144C. [0078] Reproductive organs.—Stamens: Quantity per flower: About 25 to 30. Filament length: About 1 mm to 2 mm. Filament color: Close to 155D. Anther shape: Oblong. Anther length: About 1 mm to 2 mm. Anther color: Close to 1A to 1D. Pollen amount: None observed. Pistils: Quantity per flower: Five. Pistil length: About 6 mm to 12 mm. Stigma shape: Rounded. Stigma color: Close to 155D. Style length: About 1 mm to 3 mm. Style color: Close to 155D. [0079] Seeds and fruits.—To date, seed and fruit development have not been observed on plants of the new Delphinium. [0080] Pathogen & pest resistance: To date, plants of the new Delphinium have not been noted to be resistant to pathogens and pests common to Delphinium plants. [0081] Garden performance: Plants of the new Delphinium have exhibited good garden performance and to be tolerant to rain, wind and temperatures ranging from −20° C. to 40° C.